it is fundamentally unfair in it's approach, and we believe it's not the right way to do it. if you look at precedence using the civil aviation organization for consensus building on international aviation issues, is it much more effective way to do this. we have been clear both on p the record, off the record, and at every level with our e.u. counterparts that this is unacceptable, that we do not support it. if you look closely at the reaction around the world, you'll see that we have a lot of other nations in concert with the united states who also believe the unilateral imposition of that emissions trading scheme is inappropriate. finally, there appears to be some recognition on the european side of late that there are real consequences for doing this. we will continue to press for the appropriate avenues for the resolution of an issue like this. we are continuing to make it clear that we have serious concerns and do not believe it should be implemented, and i think the consequences of the european union moving ahead unilaterally are much butter under by the e.u. these day